EP0168242A3 - Ferro-electric liquid crystal electro-optical device - Google Patents
Ferro-electric liquid crystal electro-optical device Download PDFInfo
- Publication number
- EP0168242A3 EP0168242A3 EP85304896A EP85304896A EP0168242A3 EP 0168242 A3 EP0168242 A3 EP 0168242A3 EP 85304896 A EP85304896 A EP 85304896A EP 85304896 A EP85304896 A EP 85304896A EP 0168242 A3 EP0168242 A3 EP 0168242A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- ferro
- liquid crystal
- optical device
- electric liquid
- crystal electro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/141—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using ferroelectric liquid crystals
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14294484A JPS6120930A (en) | 1984-07-10 | 1984-07-10 | Liquid crystal display element |
JP142944/84 | 1984-07-10 | ||
JP215366/84 | 1984-10-15 | ||
JP21536684A JPS6194029A (en) | 1984-10-15 | 1984-10-15 | Smectic liquid crystal display panel and its manufacture |
JP7778385A JPS61236523A (en) | 1985-04-12 | 1985-04-12 | Smectic liquid crystal display panel |
JP77783/85 | 1985-04-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0168242A2 EP0168242A2 (en) | 1986-01-15 |
EP0168242A3 true EP0168242A3 (en) | 1988-01-27 |
EP0168242B1 EP0168242B1 (en) | 1991-10-09 |
Family
ID=27302518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85304896A Expired - Lifetime EP0168242B1 (en) | 1984-07-10 | 1985-07-09 | Ferro-electric liquid crystal electro-optical device |
Country Status (3)
Country | Link |
---|---|
US (1) | US4662721A (en) |
EP (1) | EP0168242B1 (en) |
DE (1) | DE3584326D1 (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4664480A (en) * | 1985-04-26 | 1987-05-12 | American Telephone And Telegraph Company, At&T Bell Laboratories | Alignment technique for liquid crystal devices |
JP2558447B2 (en) * | 1985-09-18 | 1996-11-27 | セイコー電子工業株式会社 | Ferroelectric liquid crystal electro-optical element |
JPS62112128A (en) * | 1985-11-11 | 1987-05-23 | Semiconductor Energy Lab Co Ltd | Liquid crystal device |
US4726659A (en) * | 1986-02-24 | 1988-02-23 | Rca Corporation | Display device having different alignment layers |
US4820026A (en) * | 1986-03-20 | 1989-04-11 | Canon Kabushiki Kaisha | Ferroelectric liquid crystal device with modified polyvinyl alcohol alignment film |
GB8616165D0 (en) * | 1986-07-02 | 1986-08-06 | Stc Plc | Liquid crystal cell |
JP2530432B2 (en) * | 1986-07-22 | 1996-09-04 | キヤノン株式会社 | Liquid crystal element |
FR2613846B1 (en) * | 1987-04-10 | 1990-10-26 | Commissariat Energie Atomique | BISTABLE FERROELECTRIC LIQUID CRYSTAL DISPLAY DEVICE |
US5133895A (en) * | 1989-03-09 | 1992-07-28 | Matsushita Electric Industrial Co., Ltd. | Alignment film for liquid crystal and method for production thereof, as well as liquid crystal display device utilizing said alignment film and method for production thereof |
US5061044A (en) * | 1989-05-23 | 1991-10-29 | Citizen Watch Co., Ltd. | Ferroelectric liquid crystal display having opposingly inclined alignment films wherein the liquid crystal has one twisted and two aligned states which coexist and a driving method to produce gray scale |
JP2551848B2 (en) * | 1989-07-25 | 1996-11-06 | セイコープレシジョン株式会社 | Ferroelectric liquid crystal panel |
US5646704A (en) * | 1989-10-26 | 1997-07-08 | Canon Kabushiki Kaisha | Chiral smectic liquid crystal device having predetermined pre-tilt angle and intersection angle |
US5200238A (en) * | 1990-06-22 | 1993-04-06 | Loctite (Ireland) Limited | Liquid crystal display devices and method of manufacture |
CA2051191C (en) * | 1990-09-13 | 1996-07-09 | Shuzo Kaneko | Optical modulation element |
JPH04142514A (en) * | 1990-10-03 | 1992-05-15 | Semiconductor Energy Lab Co Ltd | Ferroelectric liquid crystal device |
US5490001A (en) * | 1990-11-19 | 1996-02-06 | Semiconductor Energy Laboratory Co., Ltd. | Ferroelectric liquid crystal device with an AC electric field producing a helical structure |
JP3013260B2 (en) * | 1990-11-19 | 2000-02-28 | 株式会社半導体エネルギー研究所 | Liquid crystal device |
US5172257A (en) * | 1991-11-08 | 1992-12-15 | Bell Communications Research, Inc. | Twisted ferroelectric liquid crystal modulator for providing gray scale |
US5739882A (en) * | 1991-11-18 | 1998-04-14 | Semiconductor Energy Laboratory Co., Ltd. | LCD polymerized column spacer formed on a modified substrate, from an acrylic resin, on a surface having hydrophilic and hydrophobic portions, or at regular spacings |
US5559620A (en) * | 1992-03-05 | 1996-09-24 | Casio Computer Co., Ltd. | Anti-ferroelectric liquid crystal display device with intersecting alignment film directions |
EP0695965B1 (en) * | 1994-08-04 | 2002-04-10 | Canon Kabushiki Kaisha | Liquid crystal device |
JPH10511192A (en) * | 1995-10-16 | 1998-10-27 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Light modulation device and display comprising light modulation device |
US5943108A (en) * | 1996-07-12 | 1999-08-24 | Canon Kabushiki Kaisha | Matrix type liquid crystal display with substrate having blue filter for masking at least 75% of total planar area of auxiliary electrodes |
US5790221A (en) * | 1996-08-30 | 1998-08-04 | Industrial Technology Research Institute | Method of manufacturing a liquid crystal cell |
US20040196428A1 (en) | 2003-01-16 | 2004-10-07 | Nano Loa, Inc. | Liquid crystal display device |
KR20140115180A (en) * | 2013-03-20 | 2014-09-30 | 삼성디스플레이 주식회사 | Liquid crystal displsy and method for manufacturing the same |
CN114063337B (en) * | 2020-08-07 | 2024-01-26 | 马耀东 | Epitaxial alignment liquid crystal display |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091637A2 (en) * | 1982-04-05 | 1983-10-19 | Hitachi, Ltd. | Liquid crystal display |
EP0091661A1 (en) * | 1982-04-07 | 1983-10-19 | Hitachi, Ltd. | Liquid crystal optical modulation element |
DE3427597A1 (en) * | 1983-07-29 | 1985-02-07 | American Telephone And Telegraph Co., New York, N.Y. | ALIGNMENT OF FERROELECTRIC LIQUID CRYSTAL DISPLAY DEVICES |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3930716A (en) * | 1972-03-31 | 1976-01-06 | Commissariat A L'energie Atomique | Method of collecting orientation of the molecules of a liquid crystal and a liquid-crystal cell for carrying out said method |
JPS536857B2 (en) * | 1972-08-16 | 1978-03-11 | ||
JPS5421100B2 (en) * | 1974-06-13 | 1979-07-27 | ||
US4030997A (en) * | 1975-04-21 | 1977-06-21 | Hughes Aircraft Company | Method of aligning liquid crystals |
GB1543599A (en) * | 1976-05-04 | 1979-04-04 | Standard Telephones Cables Ltd | Liquid crystal cell |
JPS53116169A (en) * | 1977-03-18 | 1978-10-11 | Citizen Watch Co Ltd | Reflection type liquid crystal color display device |
DE2827471C2 (en) * | 1978-06-22 | 1982-09-02 | Siemens AG, 1000 Berlin und 8000 München | Liquid crystal cell with an induced cholesteric phase |
JP3701078B2 (en) * | 1996-06-18 | 2005-09-28 | タカラ技研株式会社 | Road slab construction method |
-
1985
- 1985-06-28 US US06/750,092 patent/US4662721A/en not_active Expired - Lifetime
- 1985-07-09 DE DE8585304896T patent/DE3584326D1/en not_active Expired - Lifetime
- 1985-07-09 EP EP85304896A patent/EP0168242B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091637A2 (en) * | 1982-04-05 | 1983-10-19 | Hitachi, Ltd. | Liquid crystal display |
EP0091661A1 (en) * | 1982-04-07 | 1983-10-19 | Hitachi, Ltd. | Liquid crystal optical modulation element |
DE3427597A1 (en) * | 1983-07-29 | 1985-02-07 | American Telephone And Telegraph Co., New York, N.Y. | ALIGNMENT OF FERROELECTRIC LIQUID CRYSTAL DISPLAY DEVICES |
Non-Patent Citations (1)
Title |
---|
FERROELECTRICS, vol. 59, 1984, New York J.S. PATEL et al. "A reliable method of alignment for smedic liquid crystals" pages 137-144 * |
Also Published As
Publication number | Publication date |
---|---|
EP0168242B1 (en) | 1991-10-09 |
DE3584326D1 (en) | 1991-11-14 |
EP0168242A2 (en) | 1986-01-15 |
US4662721A (en) | 1987-05-05 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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Owner name: SEIKO INSTRUMENTS INC. |
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